CN112977137B - Direct current wall-hanging electric pile that fills - Google Patents

Direct current wall-hanging electric pile that fills Download PDF

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Publication number
CN112977137B
CN112977137B CN202110417128.8A CN202110417128A CN112977137B CN 112977137 B CN112977137 B CN 112977137B CN 202110417128 A CN202110417128 A CN 202110417128A CN 112977137 B CN112977137 B CN 112977137B
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China
Prior art keywords
fixedly connected
mounting plate
charging pile
pile body
plate
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CN202110417128.8A
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CN112977137A (en
Inventor
朱科
武敏
宋宇
吕黎黎
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Jiangsu Renshen Zhizao Technology Co ltd
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Jiangsu Renshen Zhizao Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30Constructional details of charging stations
    • B60L53/31Charging columns specially adapted for electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30Constructional details of charging stations
    • B60L53/302Cooling of charging equipment
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to a direct-current wall-mounted charging pile, which comprises a charging pile body; mounting a plate; a first trapezoidal block; and a second trapezoidal block; connecting columns are fixedly connected to the periphery of the back of the charging pile body, and bayonets are formed in the connecting columns; the mounting plate is uniformly and fixedly connected with four positioning frames, the mounting plate is also symmetrically provided with two second trapezoidal blocks, the opposite back ends of the two second trapezoidal blocks are fixedly connected with loop bars, the loop bars are connected to the sleeve in a sliding manner, the sleeve is fixedly connected to the mounting plate through connecting pieces, and the sleeve and the loop bars are both sleeved with first springs; through will filling the connecting post on the electric pile body and insert to the locating frame in, then through the joint of cardboard and bayonet socket, alright will fill electric pile body fixed mounting fast, during the dismantlement, only need rotate the threaded rod, let the cardboard not with the bayonet socket joint, take off fill the electric pile body can, and fill and have certain distance between electric pile body and the mounting panel, be convenient for fill the heat dissipation of electric pile body.

Description

Direct current wall-hanging electric pile that fills
Technical Field
The invention relates to the technical field of charging piles, in particular to a direct-current wall-mounted charging pile.
Background
In recent years, the urban environmental pollution problem is more and more serious, wherein the automobile exhaust pollution increasingly harms the health of people, the electric automobile is popularized and applied to daily life due to the advantages of no pollution along with the improvement of environmental awareness and the rapid development of low-carbon economy and energy-saving emission-reduction technology;
fill electric pile is the supporting facility that charges of important basis of electric automobile, and the use and the car refueling process of filling electric pile are very similar, and in electric automobile charging operation, the one end of the rifle that charges links to each other with the socket that charges of filling electric pile, and the other end links to each other with electric automobile's the port that charges. After charging is finished, the charging gun is pulled out from the charging socket and a charging port of the electric automobile; charging piles in the prior art are various and can be roughly divided into a wall-mounted type charging pile and a column type charging pile, and the wall-mounted charging pile is widely used due to the advantage of small occupied area;
most of the existing wall-mounted charging piles directly fix the rear cover of the shell of the charging pile on a wall through a fastener, and the wall-mounted charging piles are troublesome to install and use and reduce the working efficiency; the direct fixed installation on the wall body can also cause that the heat generated by the charging pile body during working cannot be timely and quickly dissipated, and the long-time heat accumulation can cause the temperature rise of the machine body of the charging pile body and possibly cause the damage of the charging pile body;
in summary, the present application provides a dc wall-mounted charging pile to solve the above problems.
Disclosure of Invention
The invention aims to provide a direct-current wall-mounted charging pile, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a direct-current wall-mounted charging pile comprises a charging pile body; mounting a plate; a first trapezoidal block; and a second trapezoidal block; connecting columns are fixedly connected to the periphery of the back of the charging pile body, and bayonets are formed in the connecting columns; the mounting plate is uniformly and fixedly connected with four positioning frames, the mounting plate is also symmetrically provided with two second trapezoidal blocks, the opposite back ends of the two second trapezoidal blocks are fixedly connected with loop bars, the loop bars are slidably connected to the sleeves, the sleeves are fixedly connected to the mounting plate through connecting pieces, the sleeves and the loop bars are respectively sleeved with a first spring, and two ends of the first spring are respectively and fixedly connected with the second trapezoidal blocks and the connecting pieces; the positions of the positioning frames corresponding to the two second trapezoidal blocks are fixedly connected with clamping plates, the clamping plates penetrate through and are connected to the positioning frames in a sliding mode, and the clamping plates are matched with the bayonets for use; still rotate on the mounting panel and install the threaded rod, first trapezoidal piece is equipped with two, two all set up threaded hole on the first trapezoidal piece, just first trapezoidal piece passes through screw hole threaded connection in threaded rod, the spout has been seted up on the mounting panel, just fixedly connected with slider is gone back to the bottom of first trapezoidal piece, slider sliding connection in spout.
Preferably, both ends of the mounting plate are fixedly connected with a fixing plate, a rotating rod is rotatably mounted on the fixing plate, one end of the rotating rod is fixedly connected with a fan, and the other end of the rotating rod penetrates through the fixing plate and is fixedly connected with a gear;
the back of the mounting plate is also symmetrically and fixedly connected with two guide rods, the guide rods penetrate through and are connected with a sliding plate in a sliding manner, the sliding plate is fixedly connected with a rack, and the rack is matched with a gear for use; one end of the sliding plate is also fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the mounting plate through a connecting piece;
still fixedly connected with motor on the mounting panel, just the output shaft fixedly connected with eccentric wheel of motor, the eccentric wheel uses with the slide cooperation.
More preferably, the two opposite ends of the second trapezoidal blocks are uniformly and fixedly connected with a plurality of loop bars.
More preferably, the top end and the bottom end of the mounting plate are fixedly connected with mounting rods.
More preferably, a plurality of second springs are uniformly and fixedly connected to the sliding plate.
More preferably, the bottom end of the threaded rod is fixedly connected with a handle.
More preferably, the back surface of the mounting plate is symmetrically and fixedly connected with two motors.
More preferably, the connecting column is of a rectangular structure.
More preferably, the fixing plate is fixedly connected with the mounting plate through a bolt.
More preferably, the rotating rod is rotatably mounted to the fixed plate through a bearing.
Compared with the prior art, the invention has the beneficial effects that: 1. according to the invention, through the mutual matching of the charging pile body, the connecting column, the first trapezoidal block and the second trapezoidal block, the connecting column on the charging pile body is inserted into the positioning frame, and then the charging pile body can be quickly and fixedly installed through the clamping of the clamping plate and the bayonet; 2. according to the invention, the fan, the rotating rod, the gear, the rack, the motor and the eccentric wheel are matched with each other, and the second spring is matched with the eccentric wheel, so that the rack can slide in a reciprocating manner, the gear can rotate in a reciprocating manner, the gear drives the fan to rotate in a reciprocating manner through the rotating rod, both ends of the charging pile body can receive cool air, and the heat dissipation effect is improved.
Drawings
Fig. 1 is a schematic front view of a charging pile body according to the present invention;
FIG. 2 is a schematic side view of a charging pile body according to the present invention;
fig. 3 is a schematic top view of the charging pile body according to the present invention;
FIG. 4 is a schematic front view of the mounting plate of the present invention;
FIG. 5 is a schematic front view of the rotating rod of the present invention;
FIG. 6 is a rear view of the mounting plate of the present invention;
FIG. 7 is a schematic perspective view of a first trapezoidal block according to the present invention;
fig. 8 is a side view of the fixing plate according to the present invention.
In the reference symbols: 1. a charging pile body; 2. connecting columns; 3. a bayonet; 4. a threaded rod; 5. a chute; 6. a first trapezoidal block; 7. a threaded hole; 8. mounting a plate; 9. a slider; 10. a second trapezoidal block; 11. clamping a plate; 12. a positioning frame; 13. a sleeve; 14. a first spring; 15. a loop bar; 16. a fixing plate; 17. a fan; 18. a rotating rod; 19. a gear; 20. a rack; 21. a second spring; 22. a slide plate; 23. a guide bar; 24. a motor; 25. an eccentric wheel; 26. and (5) installing a rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, 2, 3, 4 and 7, a wall-mounted dc charging pile includes a charging pile body 1; a mounting plate 8; a first trapezoidal block 6; and a second trapezoidal block 10; connecting columns 2 are fixedly connected to the periphery of the back of the charging pile body 1, and bayonets 3 are formed in the connecting columns 2; four positioning frames 12 are uniformly and fixedly connected to the mounting plate 8, two second trapezoidal blocks 10 are further symmetrically arranged on the mounting plate 8, loop bars 15 are fixedly connected to opposite ends of the two second trapezoidal blocks 10, the loop bars 15 are slidably connected to the sleeve 13, the sleeve 13 is fixedly connected to the mounting plate 8 through connecting pieces, first springs 14 are sleeved on the sleeve 13 and the loop bars 15, and two ends of each first spring 14 are fixedly connected with the second trapezoidal blocks 10 and the connecting pieces respectively; the positions of the positioning frames 12 corresponding to the two second trapezoid blocks 10 are both fixedly connected with clamping plates 11, the clamping plates 11 penetrate through and are connected to the positioning frames 12 in a sliding mode, and the clamping plates 11 are matched with the bayonets 3 for use;
the mounting plate 8 is further rotatably provided with a threaded rod 4, two first trapezoidal blocks 6 are arranged, threaded holes 7 are formed in the two first trapezoidal blocks 6, the first trapezoidal blocks 6 are connected to the threaded rod 4 through the threaded holes 7 in a threaded mode, the mounting plate 8 is provided with a sliding groove 5, the bottom end of each first trapezoidal block 6 is further fixedly connected with a sliding block 9, and the sliding blocks 9 are connected to the sliding grooves 5 in a sliding mode;
the length of the connecting column 2 can be designed according to actual needs, so that a certain distance is reserved between the charging pile body 1 and the mounting plate 8;
wherein, the first trapezoid block 6 and the second trapezoid block 10 are both in an isosceles trapezoid structure; when the two first trapezoidal blocks 6 move towards each other, the two second trapezoidal blocks 10 are squeezed to move back and forth, and the clamping plate 11 is clamped into the bayonet 3;
wherein, the first spring 14 plays a role of resetting;
the thread directions in the threaded holes 7 on the two first trapezoidal blocks 6 are opposite, and when the threaded rod 4 is rotated, the two first trapezoidal blocks 6 move back to back or move towards each other;
the sliding block 9 slides on the sliding groove 5 and plays a guiding role for the first trapezoid block 6;
the back ends of the two second trapezoidal blocks 10 are uniformly and fixedly connected with a plurality of loop bars 15;
the top end and the bottom end of the mounting plate 8 are fixedly connected with mounting rods 26;
wherein, the mounting plate 8 is fixedly mounted on the wall surface through a mounting rod 26;
the bottom end of the threaded rod 4 is fixedly connected with a handle;
the connecting column 2 is of a rectangular structure;
the working principle is as follows: when in use, the mounting plate 8 is fixedly mounted on a wall surface through the mounting rod 26, then the charging pile body 1 is taken, the connecting column 2 is inserted into the positioning frame 12, then the threaded rod 4 is rotated to drive the two first trapezoidal blocks 6 to slide in opposite directions, so that the two first trapezoidal blocks 6 extrude the second trapezoidal block 10, the second trapezoidal block 10 drives the clamping plate 11 to slide in the positioning frame 12 until the clamping plate 11 is inserted on the bayonet 3, thus the charging pile body 1 can be rapidly mounted, the distance between the connecting column 2 is long, a certain distance is reserved between the charging pile body 1 and the mounting plate 8, the charging pile body 1 can conveniently dissipate heat, when in disassembly, the threaded rod 4 is rotated again to drive the two first trapezoidal blocks 6 to slide in opposite directions, so that the first trapezoidal blocks 6 do not extrude the second trapezoidal block 10, under the elastic force of the first spring 14, therefore, the two second trapezoidal blocks 10 slide oppositely until the clamping plate 11 is not clamped with the bayonet 3, and then the charging pile body 1 is taken down; therefore, the connecting column 2 on the charging pile body 1 is inserted into the positioning frame 12, then the clamping plate 11 is clamped with the clamping opening 3, the charging pile body 1 can be quickly and fixedly installed, when the charging pile is disassembled, only the threaded rod 4 needs to be rotated, the clamping plate 11 is not clamped with the clamping opening 3, the charging pile body 1 can be taken down, and a certain distance is reserved between the charging pile body 1 and the mounting plate 8, so that the heat dissipation of the charging pile body 1 is facilitated.
Example two
Referring to fig. 4, 5, 6 and 8 as a preferred embodiment, both ends of the mounting plate 8 are fixedly connected with a fixing plate 16, a rotating rod 18 is rotatably mounted on the fixing plate 16, one end of the rotating rod 18 is fixedly connected with a fan 17, and the other end of the rotating rod 18 penetrates through the fixing plate 16 and is fixedly connected with a gear 19;
the back of the mounting plate 8 is also symmetrically and fixedly connected with two guide rods 23, the guide rods 23 penetrate through and are connected with a sliding plate 22 in a sliding manner, the sliding plate 22 is fixedly connected with a rack 20, and the rack 20 is matched with the gear 19 for use; one end of the sliding plate 22 is also fixedly connected with a second spring 21, and the other end of the second spring 21 is fixedly connected with the mounting plate 8 through a connecting piece;
the mounting plate 8 is also fixedly connected with a motor 24, an output shaft of the motor 24 is fixedly connected with an eccentric wheel 25, and the eccentric wheel 25 is matched with the sliding plate 22 for use;
the fan 17 is used for radiating the charging pile body 1;
wherein, the second spring 21 plays a role of resetting, the eccentric wheel 25 rotates to push the sliding plate 22 to slide, so the sliding plate 22 drives the rack 20 to slide;
wherein, when the rack 20 slides, the rack 20 drives the gear 19 to rotate;
a plurality of second springs 21 are uniformly and fixedly connected to the sliding plate 22;
the back of the mounting plate 8 is symmetrically and fixedly connected with two motors 24;
the fixing plate 16 is fixedly connected with the mounting plate 8 through bolts;
the rotating rod 18 is rotatably arranged on the fixed plate 16 through a bearing;
the working principle is as follows: during the use, start fan 17 and motor 24 work, fan 17 work is to filling electric pile body 1 and dispel the heat the cooling, motor 24 drives eccentric wheel 25 and rotates, when eccentric wheel 25 contradicts slide 22, so slide 22 drives rack 20 and slides to one side, rack 20 drives gear 19 anticlockwise rotation certain angle, so gear 19 drives fan 17 through bull stick 18 and rotates certain angle, when eccentric wheel 25 is not contradicting slide 22, so under the effect of second spring 21 elasticity, slide 22 drives rack 20 and slides to the another side, rack 20 drives gear 19 anticlockwise rotation certain angle, so gear 19 drives fan 17 through bull stick 18 once more and rotates; so reciprocal, alright realize the reciprocating type rotation of fan 17, let fill electric pile body 1's both ends and can both receive the cool wind, increased the radiating effect.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a wall-hanging electric pile that fills of direct current which characterized in that: comprises that
A charging pile body (1);
a mounting plate (8);
a first trapezoidal block (6); and
a second trapezoidal block (10);
connecting columns (2) are fixedly connected to the periphery of the back of the charging pile body (1), and bayonets (3) are formed in the connecting columns (2); four positioning frames (12) are uniformly and fixedly connected to the mounting plate (8), two second trapezoidal blocks (10) are further symmetrically arranged on the mounting plate (8), loop bars (15) are fixedly connected to the opposite ends of the two second trapezoidal blocks (10), the loop bars (15) are slidably connected to the sleeves (13), the sleeves (13) are fixedly connected to the mounting plate (8) through connecting pieces, first springs (14) are sleeved on the sleeves (13) and the loop bars (15), and two ends of each first spring (14) are fixedly connected with the second trapezoidal blocks (10) and the connecting pieces respectively; the positions of the positioning frames (12) corresponding to the two second trapezoidal blocks (10) are both fixedly connected with clamping plates (11), the clamping plates (11) penetrate through and are connected to the positioning frames (12) in a sliding mode, and the clamping plates (11) are matched with the bayonets (3) for use;
the mounting plate (8) is further rotatably provided with a threaded rod (4), the number of the first trapezoidal blocks (6) is two, threaded holes (7) are formed in the two first trapezoidal blocks (6), the first trapezoidal blocks (6) are connected to the threaded rod (4) through the threaded holes (7) in a threaded mode, the mounting plate (8) is provided with a sliding groove (5), the bottom end of each first trapezoidal block (6) is fixedly connected with a sliding block (9), and each sliding block (9) is connected to the sliding groove (5) in a sliding mode;
both ends of the mounting plate (8) are fixedly connected with fixing plates (16), a rotating rod (18) is rotatably mounted on the fixing plates (16), one end of the rotating rod (18) is fixedly connected with a fan (17), and the other end of the rotating rod (18) penetrates through the fixing plates (16) and then is fixedly connected with a gear (19);
the back of the mounting plate (8) is also symmetrically and fixedly connected with two guide rods (23), the guide rods (23) penetrate through and are connected to a sliding plate (22) in a sliding mode, the sliding plate (22) is fixedly connected with a rack (20), and the rack (20) is matched with a gear (19) for use; one end of the sliding plate (22) is also fixedly connected with a second spring (21), and the other end of the second spring (21) is fixedly connected with the mounting plate (8) through a connecting piece;
still two motors (24) of fixedly connected with on mounting panel (8), just the output shaft fixedly connected with eccentric wheel (25) of motor (24), eccentric wheel (25) and slide (22) cooperation are used.
2. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the back ends of the two second trapezoidal blocks (10) are evenly and fixedly connected with a plurality of loop bars (15).
3. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the top and the bottom of the mounting plate (8) are fixedly connected with mounting rods (26).
4. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the sliding plate (22) is uniformly and fixedly connected with a plurality of second springs (21).
5. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the bottom end of the threaded rod (4) is fixedly connected with a handle.
6. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the back of the mounting plate (8) is symmetrically and fixedly connected with two motors (24).
7. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the connecting column (2) is of a rectangular structure.
8. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the fixing plate (16) is fixedly connected with the mounting plate (8) through bolts.
9. The wall-mounted direct-current charging pile according to claim 1, characterized in that: the rotating rod (18) is rotatably mounted on the fixed plate (16) through a bearing.
CN202110417128.8A 2021-04-19 2021-04-19 Direct current wall-hanging electric pile that fills Active CN112977137B (en)

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